To be honest I never even thought of the service as spammy, which is why I was surprised to read so much of that in the comments here.
If people are upset/annoyed that is was automated.. fine.. do it manually.. the fact remains that it is a very effective method to build your audience in a targeted fashion.
Maybe Myles should just "pivot" to compete with Little Bird and focus on just surfacing the data on who you SHOULD be engaging with.